Global Patent Index - EP 0313028 A3

EP 0313028 A3 19910130 - ARC DISCHARGE LAMP WITH ELECTRODELESS ULTRAVIOLET RADIATION STARTING SOURCE

Title (en)

ARC DISCHARGE LAMP WITH ELECTRODELESS ULTRAVIOLET RADIATION STARTING SOURCE

Publication

EP 0313028 A3 19910130 (EN)

Application

EP 88117416 A 19881019

Priority

US 11139687 A 19871022

Abstract (en)

[origin: EP0313028A2] A metal halide arc discharge lamp comprises an arc tube containing a chemical fill including mercury and metal halides and having first and second electrodes respectively sealed at opposite ends thereof. An outer envelope surrounds the arc tube and has first and second terminals for electrical connection thereto. An electrodeless source of ultraviolet radiation is provided within the outer envelope proximate the arc tube for producing radiation which illuminates the path between the electrodes of the arc tube to decrease the amount of time for generating a gaseous discharge therebetween. The ultraviolet light source includes an envelope of ultraviolet light transmitting material having opposing ends. Portions of the envelope of the ultraviolet light source are capacitively coupled across the electrodes of the arc tube such that the source produces ultraviolet radiation during lamp starting when the first and second terminals of the lamp are energized.

IPC 1-7

H01J 61/54; H01J 65/04

IPC 8 full level

H01J 61/54 (2006.01); H01J 65/04 (2006.01)

CPC (source: EP US)

H01J 61/54 (2013.01 - EP US); H01J 65/04 (2013.01 - EP US)

Citation (search report)

  • [X] US 3997816 A 19761214 - HAUGSJAA PAUL OSBORNE, et al
  • [Y] GB 2066560 A 19810708 - MITSUBISHI ELECTRIC CORP
  • [Y] FR 1234391 A 19601017 - PHILIPS NV
  • [A] DE 3518299 A1 19861127 - GERLACH PAUL
  • [A] US 2629839 A 19530224 - GREENLEE WILLIAM B
  • [A] US 3873884 A 19750325 - GABRIEL FRED C
  • [A] FR 2448224 A1 19800829 - GTE LABORATORIES INC [US]
  • [A] GB 2140229 A 19841121 - EMI PLC THORN
  • [YP] US 4721888 A 19880126 - PROUD JOSEPH M [US], et al
  • [Y] PATENT ABSTRACTS OF JAPAN vol. 10, no. 175 (E-413)(2231) 20 June 1986, & JP-A-61 024 138 (MATSUSHITA DENSHI KOGYO K.K.) 1 February 1986,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 5, no. 15 (E-43) 29 January 1981, & JP-A-55 143 768 (TOSHIBA CORP.) 10 November 1980,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 8, no. 250 (E-279) 16 November 1984, & JP-A-59 127 356 (ETOU DENKI KK) 23 July 1984,
  • [XP] PATENT ABSTRACTS OF JAPAN vol. 12, no. 217 (E-624)(3064) 21 June 1988, & JP-A-63 013 255 (CANON INC.) 20 January 1988,
  • [YP] PATENT ABSTRACTS OF JAPAN vol. 12, no. 285 (E-642)(3132) 4 August 1988, & JP-A-63 062 147 (MATSUSHITA ELECTRONICS CORP.) 18 March 1988,
  • [AP] PATENT ABSTRACTS OF JAPAN vol. 12, no. 420 (E-679)(3267) 8 November 1988, & JP-A-63 158 737 (TOSHIBA CORP.) 1 July 1988,

Designated contracting state (EPC)

BE DE FR GB NL

DOCDB simple family (publication)

EP 0313028 A2 19890426; EP 0313028 A3 19910130; EP 0313028 B1 19950705; CA 1302476 C 19920602; DE 3854112 D1 19950810; DE 3854112 T2 19960307; JP H01134849 A 19890526; US 4812714 A 19890314

DOCDB simple family (application)

EP 88117416 A 19881019; CA 578128 A 19880922; DE 3854112 T 19881019; JP 26302988 A 19881020; US 11139687 A 19871022